[llvm] [SDAG] Remove invalid check (NFC) (PR #146899)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-selectiondag

Author: Benjamin Maxwell (MacDue)

<details>
<summary>Changes</summary>

It does not make sense to do !LC. LC is an RTLIB::Libcall enum, and zero is a valid value.

---
Full diff: https://github.com/llvm/llvm-project/pull/146899.diff


1 Files Affected:

- (modified) llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp (+1-1) 


``````````diff
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 30ee6a99b9dfc..07c44350c026e 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2518,7 +2518,7 @@ bool SelectionDAG::expandMultipleResultFPLibCall(
   unsigned NumResults = Node->getNumValues();
 
   const char *LCName = TLI->getLibcallName(LC);
-  if (!LC || !LCName)
+  if (!LCName)
     return false;
 
   auto getVecDesc = [&]() -> VecDesc const * {

``````````

</details>


https://github.com/llvm/llvm-project/pull/146899